汪若尘,俞峰,邵凯,孟祥鹏,丁仁凯,陈龙.集成电磁悬架的轮毂驱动电动车垂向振动抑制方法研究[J].农业机械学报,2018,49(7):382-389.
WANG Ruochen,YU Feng,SHAO Kai,MENG Xiangpeng,DING Renkai,CHEN Long.Design and Performance Analysis of Electromagnetic Suspension Based on In-wheel Motor Car[J].Transactions of the Chinese Society for Agricultural Machinery,2018,49(7):382-389.
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集成电磁悬架的轮毂驱动电动车垂向振动抑制方法研究   [下载全文]
Design and Performance Analysis of Electromagnetic Suspension Based on In-wheel Motor Car   [Download Pdf][in English]
投稿时间:2018-01-12  
DOI:10.6041/j.issn.1000-1298.2018.07.047
中文关键词:  轮毂驱动电动车  电磁悬架  天棚策略  轮胎接地性  平顺性
基金项目:国家自然科学基金项目(51575240)、江苏省教育厅自然科学基金重大项目(15KJA460005)和镇江市工业支撑项目(GY2015029)
作者单位
汪若尘 江苏大学 
俞峰 江苏大学 
邵凯 江苏大学 
孟祥鹏 江苏大学 
丁仁凯 江苏大学 
陈龙 江苏大学 
中文摘要:针对轮毂电机驱动电动车非簧载质量增大,引起的轮胎接地性和汽车平顺性恶化的问题,提出一种抑制轮毂驱动电动汽车垂向振动负效应的新结构,将电磁悬架集成于此系统,其中轮毂电机通过橡胶衬套与车轮支承轴弹性连接,将轮毂电机用作动力吸振器,抑制车轮垂向振动,提高轮胎接地性。同时,电磁悬架采用直线电机作为作动器,以改善轮毂驱动电动车平顺性。建立了轮毂电机悬置的电磁悬架动力学模型,通过仿真分析了各质量系之间的传递特性和各性能指标(车身加速度、轮胎动载荷)。研究结果表明,采用轮毂电机悬置的悬架系统在频域内能够有效抑制车轮型共振峰,并使车轮型共振频率避免落在人体最敏感区段4~12.5Hz;在此基础上比较了电磁悬架系统与传统悬架,电磁悬架系统车身加速度降低23.1%,轮胎动载荷下降16.6%,改善了轮毂电机驱动电动车的平顺性和轮胎接地性。最后,在单通道台架上进行了试验,验证了悬置式结构和天棚控制策略的可行性。
WANG Ruochen  YU Feng  SHAO Kai  MENG Xiangpeng  DING Renkai  CHEN Long
Jiangsu University,Jiangsu University,Jiangsu University,Jiangsu University,Jiangsu University and Jiangsu University
Key Words:in-wheel electric driving vehicle  electromagnetic suspension  sky-hook strategy  tire grounding  comfort
Abstract:A structure of electromagnetic suspension with in-wheel motor was proposed. This structure was aimed at conquering the unsprung mass increase because of the motor in wheel to worsen tire grounding and ride comfort. In addition, this structure was equivalent to dynamic vibration absorber, which can effectively share the road vertical excitation on the tire. Thus, the dynamic model of the electromagnetic suspension was established with in wheel motor. The transfer characteristics and the performance indexes (vehicle acceleration and tire dynamic load) between the quality systems were analyzed by simulation. The results showed that the suspension system can effectively inhibit the wheel-type formant during the frequency domain, and make the wheel-shaped resonant frequency avoid falling in the most sensitive section of the human body: 4~12.5Hz. Based on the structure, the actuator would use the sky hook control strategy to improve the ride comfort. Compared with the conventional suspension, the body acceleration of new system was reduced by 23.1%, and tire dynamic load was decreased by 166%. In terms of modified structure and the sky-hook control strategy, the performance of ride comfort and tire grounding were improved obviously. Finally, the experiment was carried out on the single aisle pedestals to verify the feasibility of the new structure and control method. The results showed that the negative effect of vertical vibration caused by the increase of the non-spring load of electric vehicle was suppressed by the new structure and new control method.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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